# Scientific Calculator * vs 1000digit Calc

The clearest difference is in-app purchases: 1000digit Calc at none against Scientific Calculator *'s 1. 1000digit Calc also leads on ads (none vs shown) and rating (5.0 vs 4.6). Scientific Calculator *'s advantage is ratings volume (12 vs 1) and iOS requirement (12.0 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Scientific Calculator * sells 1 one-off in-app purchase. 1000digit Calc asks for nothing beyond the download.

1000digit Calc holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Scientific Calculator * has 12 ratings behind it against 1, so its average is the more settled of the two.

Scientific Calculator * ships an update every 2 weeks, 1000digit Calc weekly. Both last shipped on November 3, 2026.

## The numbers

| Metric | Scientific Calculator * | 1000digit Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (12 ratings)](https://appshunter.io/ios/app/scientific-calculator/id1537346972/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/1000digit-calc/id6463856899/reviews)** |
| Number of ratings | **12** | 1 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 86 MB | 5 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TOWER OF HANOI SOFTWARE COMPANY LIMITED](https://appshunter.io/developer/1125320041) | [Yukihiro Shioya](https://appshunter.io/developer/1565306192) |

## What reviewers say

### Scientific Calculator *

[App page](https://appshunter.io/ios/app/scientific-calculator/id1537346972)

This app offers a comprehensive suite of calculation tools, including basic and advanced math functions, unit conversions, and financial calculators. It also features a history log for easy access to past calculations and allows for customization of themes.

**Highlights:** Basic and complex calculations, Unit and currency converter, Financial calculators (loan, discount), Calculation history log, Customizable themes, Fraction and trigonometric functions

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ad | $4.99 | one-time |


### 1000digit Calc

[App page](https://appshunter.io/ios/app/1000digit-calc/id6463856899)

Perform arithmetic operations on integers up to 1,000 digits. Supports parentheses for complex calculations and automatically saves results to the clipboard for easy reuse in other applications.

**Highlights:** 1,000-digit integer calculations, Parentheses support for formula order, Automatic clipboard saving of results, Four basic arithmetic operations, Cross-application result reuse

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Scientific Calculator * free?

Scientific Calculator * is free to download, with in-app purchases available.

### Is 1000digit Calc free?

1000digit Calc is free to download, with no in-app purchases.

### Which has better reviews, Scientific Calculator * or 1000digit Calc?

1000digit Calc is rated higher. Scientific Calculator * averages 4.6 out of 5 from 12 ratings, while 1000digit Calc averages 5.0 from 1 ratings.

### Do Scientific Calculator * or 1000digit Calc have ads?

Scientific Calculator * shows ads; 1000digit Calc does not.

### Which is updated more often, Scientific Calculator * or 1000digit Calc?

Scientific Calculator * ships an update every 2 weeks, and 1000digit Calc weekly. Most recently, Scientific Calculator * was updated on November 3, 2026 and 1000digit Calc on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*